Finding the Fourth Proportional to 88,316,390.80, 121,876,624.92 and 49,157,324.56
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Solution
The fourth proportional to 88,316,390.80, 121,876,624.92 and 49,157,324.56 is: 67,837,111.02
Step by Step Solution
- Step 1: Write the proportion equation
88,316,390.80 : 121,876,624.92 = 49,157,324.56 : x - Step 2: Convert to fraction form
88,316,390.80/121,876,624.92 = 49,157,324.56/x - Step 3: Cross multiply
88,316,390.80x = 121,876,624.92 × 49,157,324.56 - Step 4: Simplify right side
88,316,390.80x = 5,991,128,807,469,824 - Step 5: Solve for x
x = 5,991,128,807,469,824/88,316,390.80 - Step 6: Final answer
x = 67,837,111.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.